Sectional form and truss-support.



G. H. SHERWOOD.

SEGTIONAL POR-M AND TRUSS SUPPORT.

' APPLICATION FILED JUNE 29. 1906. 949,093. I Patented Feb.15,191o.

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Patented Feb. 15, 1910.

APPLICATION FILED JUNE 29 1906. 949,093.A

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G. H. SHERWOOD.

e SEGTIONAL FORM AND TRUSS SUPPORT.

APPLIoATIoN FILED JUNI: 29, 190e.

949,093.` Patented Feb.15, 1910.

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' and may be utilized for the accommodation structure and-consequently have materially g a vertical sectional view of the mold sections .To all whom fit may concern:

unirsi) sTAfrnsi "Parnu orrori.

GEORGE H. SHERWOOD, OF DAYTON, KENTUCKY.

SECTIONAL FORM AND TRUSS-SUPPORT.

Be it known that I, GEORGE H. Srrnmvoon, t a citizen of the United States, residing at Dayton, in the county of Campbell and State of Kentucky, have invented a new and useful Sectional Form and Truss-Support, of which the following is a specification. g v This invention has relation to sectinall form and truss supports adapted to be used in concrete constructions and it consists in the novel construction and arrangement of i its parts as hereinafter shown and described. 2

The object of theinvention is to provide improved sectional forms and truss supports for thel same whereby 'concrete constructions may be produced with highly finished and ornamental appearance and which will be devoid of such mars or defects that would require the services of pointers to correct after the structure has been completed.

A further object of the invention is to so construct the sections and the truss supports that when they are in erected position, they will not materially interfere with the interior space of the structure and consequently the area within the structure is open of material or used as working space in connection with other features about the structure, it being understood that heretofore in providing forms for molding' concrete structures that the molds themselves have-l occupied a great deal of space about the interfered not only with the passing of con crete material etc., but with the handling of other materials used about the structure.

It is the object of the present invention to avoid this greatdisadvantage.

For the purpose of illustrating the method of application of the present invention, it is shown and described as applied to a ceiling although it mayl be applied for constructing other portionsaof a building.

In the accompanying drawings z-Figure 1 is a bottom plan view of the mold sections showing their relative positions. Fig. 2 is truss supported from beams. FigA 3 is a vertical sectional view of the sections showing an arrangement of colulnns supporting the same. Fig. et is a detail perspective View of a portion of the column form showing a t struction of the same.

trusssupporting lug attached thereto. Fig. 5. 1s a perspectivel view of a clampv usedv Specification of Letters Patent. ,Patented Feb, 15, 1910, Anulication led June 29, 1906. Serial No. 324.082.

or boxes. Fig. G is a detail sectional view of a portion of one of the mold sections showing the soilit-box attaching means. Fig

'i is a bottom plan View of part of a set of mold sections showing a modified con- Fig. 8 is a side elevation of a raising and lowering means. Fig. 9 is an end eleva-tion partly in section `of said means. F ig. 10 is a transverse section of the upper ends of frame members of such means.

In the form of a ceiling, the sections are usually four in number" although there may be six, eight, or evenlmore according to the size of the ceiling. In the present instance. as above stated, four sections are used for thepurpose of illustrating the relative ar rangement thereof. Sections 1 and 2 are of the same construction and in arrangement are located diagonally opposite each other. Sections 3 and 4 are of the same construction and are located diagonally opposite each other. ln sections 1 and 2 the joists 5 ex- Atend longitudinally of the sections while in sections 3 and 4 the joists G extend transversely. In sections 1 and 2, the 'sheathing 7 extends transversely while in sec-tions 3 and l the sheathin 8 extends longitudinally.

l The jo'ists 5 are o greater breadth than the The planks 9 are secured against the lower edges of the j oists 6 and extend transversely 'of the joists and longitudinally of the section. The difference in breadth between the joists' 5 and 6 is equal to the thickness of the planks 9. `Consequently the planks 9 extend throughout their length in' alinement with the lowervedgesof the josts 5.

As shown in Fig. 1 of the drawing, the joists 5 and 6' are 1n single sections extending from one side of the mold section to the other While in the form as shown in Fig. 7 the joists 5 and 6 are in sections bolted to-A gether at 11. In vthe last form the said sections of joists may be disconnected from one another when the forms are taken down and consequently can be packed in small space for shipment or storage purposes. Vhen 'the form or mold sections are in set up posithrough the side boards 14 and through the said wedges 12 pass the bolts 13. 'Thus when the -sections are spaced, they are held 1n -horizontal position in proper relation to l' of the soffit yat the lower edges ofsaid ference in construction, above pointed out, the said sections are similar and a description of one will answer for all. v

Each section has at one edge the side board 14 and at 011e end an end board 15 and at the other side and end, the work facing boards 16 and 17. The sheetA iron plate 17 covers the outer surface of the sec- ,tions and extends down over the Work facsuitably secured V ing boards 16 and 17 and is boards. The inner faces of the work facing boards 16 are provided `-with the sockets 18 which are adapted to 'receive the flange extensions 19 plates or boxes 20, the wedge 21 fitting between the edge of said 4flange and the end of the socket to bind the parts together. Thus the sofiit plate is supported and the blocks 22 are interposed between the upper face` of the soffit plate' and the beam 23. 'The concrete block 22 is provided with the Wire 24, the ends of which may be bent up around' the lower flange of the beam 23 and thus retained in position. The blocks v22 space the soffit plates 2() from the lower edge of the beam 23 and such space is filled With cement concrete which forms theficoating for thelower edge of the beam. It is, of course, understood that as the Work adp varices, the blocks 22 are removed and the perforations space formerly occu ied by them is filled with concrete. The b ocks 25 space the work facing boards 16 and 17 vfrom the sides of the beam 23 and are removedas -the Workv advances in a manner similar to that described for the blocks 22.

A truss is provided 'for supporting the form orvmold sections. Said truss consists of the .intermediate lportion 26 and theV guides 27 which are 'suitably bolted or otherwise secured near the' ends of the ysaid intermediate portion 26. Said guides receive the side straps 28, the ends of which areA adapted to pass through the perforations or keeper 2 9 formed in the Work facing boards 16 and rest upon the flanges of the beam 23 or other suitab e support. It will be observed by reference to Fig. 2 that the outer terminals of the side straps are oppositely beveled on different angles, the object of'this arrangement being to constitute the straps a means for elevating effected by causing the inclined terminals to be drivenor forced laterally upon the flanges of the beams, and thereby secure the object` sought.v The said side straps 28 are provided With perforations 30 which, when the said side straps 28 are in extended position, register with corresponding perforations in the intermediate portion 26. When the said arethus in register, bolts are passed therethrough and the said side straps ,28 are held/in extended lposition-With rethe form sections which will be lation to the portion 26. i The inner ends of the side straps 28 are provided with laterally extending flanges. 31 and the intermediate portion 26 is provided with o, other suitable fixed supports.

-boards 16 as above stops 32 which are located in the paths of the side straps 28 and are adapted to check the inward movement of the same. The flanges 31 may be used for withdrawing same time they retain the guides27.-

The truss rod 33 is secured at its ends to the ends of the intermediate portion 26 by lneans of the screw tap 34. From said point of connection between the ends of the truss rod 33 and the portions 26 the said rods destraps within the the straps and at the scend at an angle and merge into the horizontal section 35. At the point where the inclined section meets the horizontal section is loca-ted the eye 36. The stud bolt 37 has its upper end resting in a perforation in the lower edge ofthe intermediate truss porioln 26. The shoulder 38 is fixed tothe said o t portion 26. The lower end of. said bolt passes through the eye 36 and ,is screw threaded as at 39. The tap 46 en ages the thread 39 and bears at its under face against 1 the upper edge of the eye 36. The horizontal portion of the truss rod 33 is made in two sections which are turn buckle 41.

When erected, the ends of the straps 28 are projected through the perforations 29 of the work facing boards 16 of the form or mold sections and the 28 rest upon the flanges of the beams 23' or The mold or form sections are thus superimposed above the trusses and the soflit plates. 2O are attached to the lower edges of the work facing described.` It sometimes happens that the beams 23 are not used or are not so spaced in constructions as to serve as supports for the form or mold sections as above described. When such is the case, supplemental trusses 42 are provided for supporting the mold supporting trusses, as shown in Fig. 3. Saidl supplemental trusses are of the same construction as above described and their intermediate portions rest upon the blocks 43'Which are attached to the sides of the mold or casing'44 Within which the columns 45 are molded. The ends of the straps of the said trusses 42 pass through the openings 46 provided .in the mold 44. In connection with the mold 44 and also in connection With the soflit platesabove described a clamp may be used in order to prevent the soffit plates or column from bulging. The strips or blocks 47 ar of the parts desir bulging. The clamp lug 49 and at its 50 is provided. Said eccentric is with a handle 51. The lug 49 is p to be retained from 48 1s provided with a rovided aced bejoined together by the .'r

ends of the said straps spaced along the sides opposite end theeecentric 37 and bears against the under side of l lli.

hind one block 47 and the edge of the eccentric 50 is brought to bear a ainst the outer side of the opposite block 47 The eccentric 50 is then turned so that its longest diameter is brought between its pivotal point and the said strip within which its edge4 is in contact. Thus the 'two said blocks are held firmly together. p f

A means for raising and lowering the mold sections and truss supports is provided, as shownin Figs. 8 and 9. Said means consists of the fraiiie`nienibers`52, 52 which are hinged together as at 53 at their upper ends. tThe cross braces 54 are attached at their ends to one of the frame members 52 and are adapted to engage suitable eyes provided upon the op osite frame member. The shaft is suitably journaled t one of the frame members 52 and is provided at. its end with a crank handle 56 .or other means for rotating the same. The drums 57, 57 are located upon the shaft 55 and the pulleys 58, 58 are journaled in the top of the Vframe member 52 to which the shaft 55 is edges of theupperends ofthe frame mem-- bers 5,2. The said legs 60 are provided with the perforations 63 which are adapted to receive the pins 64 which, when located in a perforation 63, extend in transverse direction across the recesses 61 upontlie upper ends of the frame members 52, thus sup Jorting the scaffold member 59 at a desire distance above the upper ends of the frame members 52. The tackle 65 winds about the drums 57, passes over the pulleys 58 and at its ends is attached to the lower portions of the legs 60. It is obvious that by rotating thedrunis 57, the tackle 65 is wound thereon or unwound therefrom according to the direction in which the said drums are rotated and that as the tackle is passed over 4the pulleys 58, the sca'old member 59 is raised or lowered.

As illustrated .-in Figs. 8 and 9 of the drawings, the trusses 26 and the mold forms are supported upon the upper` end of the scaffold member 59 by means of the boards or scantling 66.

The'apparatus j'ust above described is intended to be used for putting up and taking down trusses and mold sections and, when tlie latter have been vproperly positioned, the said apparatus'is removed and the space below the said trusses and mold sections may be utilized for handling the material used in the structure. lBy means of the hinged connections between the upper ends of the frame members 52, the said members may be swung together and thus be in compact form forshipment or storage purposes. i l

Having .described my invention, what I claim as new and desire to secure by Letters Patent is Ay centering apparatus for floors and ceilings comprising a mold, a transverse beam .suporting said mold, a truss rod below said bearing at their upper ends against the beam and having their lower end s threaded" and projecting through the eyes 1n the truss rod, and nuts mounted on the said threaded ends above the truss rod and bearing against the same.

In testimony that I claim the foregoing as Amy own, I have hereto afiixed my signature in the presence of two witnesses.

GEORGE H. SHERWOOD. Witnesses:

Enw. T. SHOMBERGER, CHARLEsM. BAINS. 

